12223111210381 has 2 divisors, whose sum is σ = 12223111210382. Its totient is φ = 12223111210380.

The previous prime is 12223111210357. The next prime is 12223111210393. The reversal of 12223111210381 is 18301211132221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9660099124900 + 2563012085481 = 3108070^2 + 1600941^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223111210381 - 2²³ = 12223102821773 is a prime.

It is a super-2 number, since 2×12223111210381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12223111810381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111555605190 + 6111555605191.

It is an arithmetic number, because the mean of its divisors is an integer number (6111555605191).

Almost surely, 2^{12223111210381} is an apocalyptic number.

It is an amenable number.

12223111210381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223111210381 is an equidigital number, since it uses as much as digits as its factorization.

12223111210381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 12223111210381 in words is "twelve trillion, two hundred twenty-three billion, one hundred eleven million, two hundred ten thousand, three hundred eighty-one".